Snopes is a site, perhaps trusted to much by too many, which claims to debunk urban legends, and apparently if they are wrong they just try to change history:
The Agonist was apparently first to mention it: After 11th of September, Michael Moore was claiming on TV that Saudi royals and members of Bin Ladens family were secretly flown out of the country by Bush's special order during the ban on air travel. Snopes, debunker of all evil slammed Moore and expressed harsh words wich boiled down to "He's full of shit". Well, now he's been proven right! And Snopes just edits the page and goes in to denial about the whole thing. And what's also interesting is that the Google cache of the page has suddenly disappeared! Of course some people claim Google are closed friends with the spy community, though i suppose there are always conspiracy theories. And so people start to analyse,talk and rumminate about Snopes, Google, Moore and Bush and his Saudi friends.
I like Tom Tomorrows comment: See, when Michael says it, he's a crazy truth-distorting axe-grinder. But when much of what he said turns out to be true, suddenly it's "subjective political issues outside of the scope of this page."
Edit:Sean-Paul (The Agonist) points out that it was actually Tom Tomorrow who was the first to point this out.